Update cheatsheets

linux/ctr

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+---
+syntax: markdown
+tags: [tldr, linux]
+source: https://github.com/tldr-pages/tldr.git
+---
+# ctr
+
+> Manage `containerd` containers and images.
+> More information: <https://containerd.io>.
+
+- List all containers (running and stopped):
+
+`ctr containers list`
+
+- List all images:
+
+`ctr images list`
+
+- Pull an image:
+
+`ctr images pull {{image}}`
+
+- Tag an image:
+
+`ctr images tag {{source_image}}:{{source_tag}} {{target_image}}:{{target_tag}}`